this did bring up an interesting peice of information though. The 2 times that I got the Memory bug (and I have 1gb ram BTW so it's not just the 2gb people) I was rendering a p5 scene that I deleted out a light dome and added a IBL AO light. After 2 attempts I gave up. Since then I've only rendered scenes that I've built from the ground up in P6. I wonder if anyone else has noticed something simular, or is it just a coincidence?